Low mass fan shroud with integrated membrane barrier

摘要

An engine cooling fan shroud structure ( 20 ) for a vehicle includes a skirt ( 12 ') defining a frame. The frame has a certain wall thickness and defines an opening ( 22 ) therein constructed and arranged to permit air to pass through the skirt. The skirt includes motor mount structure ( 14 ) supported in the opening and constructed and arranged for mounting a fan motor thereto. The frame defines passageways ( 18 ) there-through to reduce an amount of material of the skirt. A film material ( 28 ) has a wall thickness substantially less than the certain wall thickness and covers the passageways such that air may flow mainly through the opening.